Corrosion-Resistant Systems · Exterior, Coastal & Washdown Exposure
Install aluminum rooftop duct
Aluminum duct — Exterior corrosive area
Hardware guidanceUse approved isolated stainless or aluminum hardware.
Anti-seize / gallingApply compatible anti-seize to stainless threads only.
How to install it
- 1
Support on broad isolated saddles
- 2
install weather-rated joints
- 3
protect from wind, impact, and ponding
- 4
allow movement.
Quality check
- No galvanic paths, dents, or standing water.
Stop and verify
Stop without wind and roof-support details.